class Test
create 
        make
feature
        make
        do
        end
        
        common alias "=" (a : Test) : INTEGER
        do
            std_output.put_string("HELLO FROM COMPARE! %N")
            result:=4
        end
end

class APP
feature 
    INIT
    local a: BOOLEAN
          b,c:Test
          f: INTEGER
    do
        a:= 4 = 2 
        a:= 5 /= 5
        
        !! b.make
        !! c.make
        a:= b /= c
        f:= b=c
    end
end